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Diffstat (limited to 'ext/amrwb/gstamrwbenc.c')
| -rw-r--r-- | ext/amrwb/gstamrwbenc.c | 372 |
1 files changed, 0 insertions, 372 deletions
diff --git a/ext/amrwb/gstamrwbenc.c b/ext/amrwb/gstamrwbenc.c deleted file mode 100644 index caf2adb7..00000000 --- a/ext/amrwb/gstamrwbenc.c +++ /dev/null @@ -1,372 +0,0 @@ -/* GStreamer Adaptive Multi-Rate Wide-Band (AMR-WB) plugin - * Copyright (C) 2006 Edgard Lima <edgard.lima@indt.org.br> - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ - -/** - * SECTION:element-amrwbenc - * @see_also: #GstAmrwbDec, #GstAmrwbParse - * - * AMR wideband encoder based on the - * <ulink url="http://www.penguin.cz/~utx/amr">reference codec implementation</ulink>. - * - * <refsect2> - * <title>Example launch line</title> - * |[ - * gst-launch filesrc location=abc.wav ! wavparse ! audioresample ! audioconvert ! amrwbenc ! filesink location=abc.amr - * ]| - * Please not that the above stream misses the header, that is needed to play - * the stream. - * </refsect2> - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include "gstamrwbenc.h" - -/* these defines are not in all .h files */ -#ifndef MR660 -#define MR660 0 -#define MR885 1 -#define MR1265 2 -#define MR1425 2 -#define MR1585 3 -#define MR1825 4 -#define MR1985 5 -#define MR2305 6 -#define MR2385 7 -#define MRDTX 8 -#endif - -static GType -gst_amrwbenc_bandmode_get_type () -{ - static GType gst_amrwbenc_bandmode_type = 0; - static GEnumValue gst_amrwbenc_bandmode[] = { - {MR660, "MR660", "MR660"}, - {MR885, "MR885", "MR885"}, - {MR1265, "MR1265", "MR1265"}, - {MR1425, "MR1425", "MR1425"}, - {MR1585, "MR1585", "MR1585"}, - {MR1825, "MR1825", "MR1825"}, - {MR1985, "MR1985", "MR1985"}, - {MR2305, "MR2305", "MR2305"}, - {MR2385, "MR2385", "MR2385"}, - {MRDTX, "MRDTX", "MRDTX"}, - {0, NULL, NULL}, - }; - if (!gst_amrwbenc_bandmode_type) { - gst_amrwbenc_bandmode_type = - g_enum_register_static ("GstAmrwbEncBandMode", gst_amrwbenc_bandmode); - } - return gst_amrwbenc_bandmode_type; -} - -#define GST_AMRWBENC_BANDMODE_TYPE (gst_amrwbenc_bandmode_get_type()) - -#define BANDMODE_DEFAULT MR660 - -enum -{ - PROP_0, - PROP_BANDMODE -}; - -static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink", - GST_PAD_SINK, - GST_PAD_ALWAYS, - GST_STATIC_CAPS ("audio/x-raw-int, " - "width = (int) 16, " - "depth = (int) 16, " - "signed = (boolean) TRUE, " - "endianness = (int) BYTE_ORDER, " - "rate = (int) 16000, " "channels = (int) 1") - ); - -static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src", - GST_PAD_SRC, - GST_PAD_ALWAYS, - GST_STATIC_CAPS ("audio/AMR-WB, " - "rate = (int) 16000, " "channels = (int) 1") - ); - -GST_DEBUG_CATEGORY_STATIC (gst_amrwbenc_debug); -#define GST_CAT_DEFAULT gst_amrwbenc_debug - -static void gst_amrwbenc_finalize (GObject * object); - -static GstFlowReturn gst_amrwbenc_chain (GstPad * pad, GstBuffer * buffer); -static gboolean gst_amrwbenc_setcaps (GstPad * pad, GstCaps * caps); -static GstStateChangeReturn gst_amrwbenc_state_change (GstElement * element, - GstStateChange transition); - -#define _do_init(bla) \ - GST_DEBUG_CATEGORY_INIT (gst_amrwbenc_debug, "amrwbenc", 0, "AMR-WB audio encoder"); - -GST_BOILERPLATE_FULL (GstAmrwbEnc, gst_amrwbenc, GstElement, GST_TYPE_ELEMENT, - _do_init); - -static void -gst_amrwbenc_set_property (GObject * object, guint prop_id, - const GValue * value, GParamSpec * pspec) -{ - GstAmrwbEnc *self = GST_AMRWBENC (object); - - switch (prop_id) { - case PROP_BANDMODE: - self->bandmode = g_value_get_enum (value); - break; - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); - break; - } - - return; -} - -static void -gst_amrwbenc_get_property (GObject * object, guint prop_id, - GValue * value, GParamSpec * pspec) -{ - GstAmrwbEnc *self = GST_AMRWBENC (object); - - switch (prop_id) { - case PROP_BANDMODE: - g_value_set_enum (value, self->bandmode); - break; - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); - break; - } - - return; -} - -static void -gst_amrwbenc_base_init (gpointer klass) -{ - GstElementClass *element_class = GST_ELEMENT_CLASS (klass); - GstElementDetails details = GST_ELEMENT_DETAILS ("AMR-WB audio encoder", - "Codec/Encoder/Audio", - "Adaptive Multi-Rate Wideband audio encoder", - "Renato Araujo <renato.filho@indt.org.br>"); - - gst_element_class_add_pad_template (element_class, - gst_static_pad_template_get (&sink_template)); - gst_element_class_add_pad_template (element_class, - gst_static_pad_template_get (&src_template)); - - gst_element_class_set_details (element_class, &details); -} - -static void -gst_amrwbenc_class_init (GstAmrwbEncClass * klass) -{ - GObjectClass *object_class = G_OBJECT_CLASS (klass); - GstElementClass *element_class = GST_ELEMENT_CLASS (klass); - - object_class->finalize = gst_amrwbenc_finalize; - object_class->set_property = gst_amrwbenc_set_property; - object_class->get_property = gst_amrwbenc_get_property; - - g_object_class_install_property (object_class, PROP_BANDMODE, - g_param_spec_enum ("band-mode", "Band Mode", - "Encoding Band Mode (Kbps)", GST_AMRWBENC_BANDMODE_TYPE, - BANDMODE_DEFAULT, G_PARAM_READWRITE | G_PARAM_CONSTRUCT)); - - element_class->change_state = GST_DEBUG_FUNCPTR (gst_amrwbenc_state_change); -} - -static void -gst_amrwbenc_init (GstAmrwbEnc * amrwbenc, GstAmrwbEncClass * klass) -{ - /* create the sink pad */ - amrwbenc->sinkpad = gst_pad_new_from_static_template (&sink_template, "sink"); - gst_pad_set_setcaps_function (amrwbenc->sinkpad, gst_amrwbenc_setcaps); - gst_pad_set_chain_function (amrwbenc->sinkpad, gst_amrwbenc_chain); - gst_element_add_pad (GST_ELEMENT (amrwbenc), amrwbenc->sinkpad); - - /* create the src pad */ - amrwbenc->srcpad = gst_pad_new_from_static_template (&src_template, "src"); - gst_pad_use_fixed_caps (amrwbenc->srcpad); - gst_element_add_pad (GST_ELEMENT (amrwbenc), amrwbenc->srcpad); - - amrwbenc->adapter = gst_adapter_new (); - - /* init rest */ - amrwbenc->handle = NULL; - amrwbenc->channels = 0; - amrwbenc->rate = 0; - amrwbenc->ts = 0; -} - -static void -gst_amrwbenc_finalize (GObject * object) -{ - GstAmrwbEnc *amrwbenc; - - amrwbenc = GST_AMRWBENC (object); - - g_object_unref (G_OBJECT (amrwbenc->adapter)); - amrwbenc->adapter = NULL; - - G_OBJECT_CLASS (parent_class)->finalize (object); -} - -static gboolean -gst_amrwbenc_setcaps (GstPad * pad, GstCaps * caps) -{ - GstStructure *structure; - GstAmrwbEnc *amrwbenc; - GstCaps *copy; - - amrwbenc = GST_AMRWBENC (GST_PAD_PARENT (pad)); - - structure = gst_caps_get_structure (caps, 0); - - /* get channel count */ - gst_structure_get_int (structure, "channels", &amrwbenc->channels); - gst_structure_get_int (structure, "rate", &amrwbenc->rate); - - /* this is not wrong but will sound bad */ - if (amrwbenc->channels != 1) { - GST_WARNING ("amrwbdec is only optimized for mono channels"); - } - if (amrwbenc->rate != 16000) { - GST_WARNING ("amrwbdec is only optimized for 16000 Hz samplerate"); - } - - /* create reverse caps */ - copy = gst_caps_new_simple ("audio/AMR-WB", - "channels", G_TYPE_INT, amrwbenc->channels, - "rate", G_TYPE_INT, amrwbenc->rate, NULL); - - gst_pad_set_caps (amrwbenc->srcpad, copy); - gst_caps_unref (copy); - - return TRUE; -} - -static GstFlowReturn -gst_amrwbenc_chain (GstPad * pad, GstBuffer * buffer) -{ - GstAmrwbEnc *amrwbenc; - GstFlowReturn ret = GST_FLOW_OK; - const int buffer_size = sizeof (Word16) * L_FRAME16k; - - amrwbenc = GST_AMRWBENC (gst_pad_get_parent (pad)); - - g_return_val_if_fail (amrwbenc->handle, GST_FLOW_WRONG_STATE); - - if (amrwbenc->rate == 0 || amrwbenc->channels == 0) { - ret = GST_FLOW_NOT_NEGOTIATED; - goto done; - } - - /* discontinuity clears adapter, FIXME, maybe we can set some - * encoder flag to mask the discont. */ - if (GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DISCONT)) { - gst_adapter_clear (amrwbenc->adapter); - amrwbenc->ts = 0; - amrwbenc->discont = TRUE; - } - - if (GST_BUFFER_TIMESTAMP_IS_VALID (buffer)) - amrwbenc->ts = GST_BUFFER_TIMESTAMP (buffer); - - ret = GST_FLOW_OK; - gst_adapter_push (amrwbenc->adapter, buffer); - - /* Collect samples until we have enough for an output frame */ - while (gst_adapter_available (amrwbenc->adapter) >= buffer_size) { - GstBuffer *out; - guint8 *data; - gint outsize; - - out = gst_buffer_new_and_alloc (buffer_size); - GST_BUFFER_DURATION (out) = GST_SECOND * L_FRAME16k / - (amrwbenc->rate * amrwbenc->channels); - GST_BUFFER_TIMESTAMP (out) = amrwbenc->ts; - if (amrwbenc->ts != -1) { - amrwbenc->ts += GST_BUFFER_DURATION (out); - } - if (amrwbenc->discont) { - GST_BUFFER_FLAG_SET (out, GST_BUFFER_FLAG_DISCONT); - amrwbenc->discont = FALSE; - } - gst_buffer_set_caps (out, gst_pad_get_caps (amrwbenc->srcpad)); - - data = (guint8 *) gst_adapter_peek (amrwbenc->adapter, buffer_size); - - /* encode */ - outsize = - E_IF_encode (amrwbenc->handle, amrwbenc->bandmode, (Word16 *) data, - (UWord8 *) GST_BUFFER_DATA (out), 0); - - gst_adapter_flush (amrwbenc->adapter, buffer_size); - GST_BUFFER_SIZE (out) = outsize; - - /* play */ - if ((ret = gst_pad_push (amrwbenc->srcpad, out)) != GST_FLOW_OK) - break; - } - -done: - - gst_object_unref (amrwbenc); - return ret; - -} - -static GstStateChangeReturn -gst_amrwbenc_state_change (GstElement * element, GstStateChange transition) -{ - GstAmrwbEnc *amrwbenc; - GstStateChangeReturn ret; - - amrwbenc = GST_AMRWBENC (element); - - switch (transition) { - case GST_STATE_CHANGE_NULL_TO_READY: - if (!(amrwbenc->handle = E_IF_init ())) - return GST_STATE_CHANGE_FAILURE; - break; - case GST_STATE_CHANGE_READY_TO_PAUSED: - amrwbenc->rate = 0; - amrwbenc->channels = 0; - amrwbenc->ts = 0; - amrwbenc->discont = FALSE; - gst_adapter_clear (amrwbenc->adapter); - break; - default: - break; - } - - ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition); - - switch (transition) { - case GST_STATE_CHANGE_READY_TO_NULL: - E_IF_exit (amrwbenc->handle); - break; - default: - break; - } - - return ret; -} |